2019 Lexus LC500 engine

3427-2. Steps to take in an emergency
■The tire pressure warning light may come on due to natural causes
The tire pressure warnin g light may come on due to natural causes such as natural air leaks
and tire inflation pressure chan ges caused by temperature. In this case, adjusting the tire
inflation pressure will turn off the warning light (after a few minutes).
■Conditions that the tire pressure wa rning system may not function properly
 P.304
■If the tire pressure warning light freque ntly comes on after blinking for 1 minute
If the tire pressure warning lig ht frequently comes on after blinking for 1 minute when the
engine switch is turned to IGNITION ON mode , have it
checked by your Lexus dealer.
■Warning buzzer
In some cases, the buzzer may not be heard du e to being in a noisy location or audio sound.
■Customization
The vehicle speed linked seat belt reminder buzzer can be disabled.
(Customizable features:  P.391)
WARNING
■If both the ABS and the brake sy stem warning lights remain on
Stop your vehicle in a safe place immediately and contact your Lexus dealer. The vehicle
will become extremely unstable during brakin g, and the ABS system may fail, which could
cause an accident resulting in death or serious injury.
■When the electric power steering system warning light comes on
When the light comes on in yellow, the assist to the power steering is restricted. When the
light comes on red, the assist to the power steering is lost and handling operations of the
steering wheel become extremely heavy. When steering wheel operations are heavier
than usual, grip the steering wheel firmly and operate it using more force than usual.
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause a loss of vehi-
cle control and result in death or serious injury.
●Decelerate to the lowest appr opriate speed as soon as possible. Do not drive over 50
mph (80 km/h).
●Check and adjust the tire in flation pressure immediately.
●If the tire pressure warning lig ht comes on even after tire inflation pressure adjustment,
it is probable that you have a flat tire. Have the flat tire replaced by the nearest Lexus
dealer.
●Avoid abrupt maneuvering and braking. If th e vehicle tires deteriorate, you could lose
control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.

3467-2. Steps to take in an emergency
●Malfunction in the EPS (Electric Power Steering) system
The electric power steering sy stem warning light comes on. ( P.336)
●Malfunction in the tire pressure warning system
The tire pressure warn ing light comes on. ( P.340)
●Remaining fuel level is low
The low fuel level warning light comes on. ( P.339)
■If “Hybrid System Overheated Reduce d Output Power” is shown (LC500h)
This message may be displayed when driving under severe operating conditions. (For exam-
ple, when driving up a long steep hill.) Stop and check. ( P.366)
■If “Traction Battery Needs to be Protected Re frain from the Use of N Position” is shown
(LC500h)
This message may be displayed wh en the shift position is in N.
As the hybrid battery (traction battery) cannot be charged when the shift position is in N,
shift the shift position to P when the vehicle is stopped.
■If “Traction Battery needs to be Protected Shift into P to Restart” is shown (LC500h)
This message is displayed when the hybrid ba ttery (traction battery) charge has become
extremely low because the vehicle has been left with the N shift position selected for a cer-
tain amount of time.
When operating the vehicle, shift to P and restart the hybrid system.
■If “Shift to P Before Exiting Vehicle” is shown
The driver’s door is opened without turning the engine switch to off with the
shift lever in any position other than P. Shift the shift position to P.
■If “Shift Is in N Release Accelerator Before Shifting” is shown
The accelerator pedal has been depressed when th e shift position is in N. Release the accel-
erator pedal and shift the shift position to D or R.
■If “Depress Brake when Vehicle Is Stoppe d Hybrid System May Overheat” is shown
(LC500h)
The message may be displayed when the accelerator pedal is depressed to hold the vehicle
while the vehicle is stopped on an uphill etc. The hybrid system may overheat. Release the
accelerator pedal and de press the brake pedal.
■If “Shift system malfunction Driving unavailable” is shown
There is a malfunction in the shift control system. Have the vehicle inspected by your Lexus
dealer immediately.
■If “Auto Power Off to Conserve Battery” is shown
LC500:
Power was turned off due to the automatic power off function. Next time when starting the
engine, increase the engine speed slightly an d maintain that level for approximately 5 min-
utes to recharge the battery.
LC500h:
Power was turned off due to the automatic power off function. Next time when starting the
hybrid system, operate the hybrid system for approximately 5 minutes to recharge the 12-
volt battery.

3477-2. Steps to take in an emergency
7
When trouble arises
■If a message that indicates the need for the shift lever operation is shown
To prevent the shift lever from being operated incorrectly or the vehicle from moving unex-
pectedly, a message that requires shifting the shift lever may be shown on the multi-informa-
tion display. In that case, follow the instruction of the me ssage and shift the shift lever.
■If “Front Camera Unavailable” or “Front Camera Unavailable Remove Debris On
Windshield” is shown
The following systems may be suspended un til the problem shown in the message is
resolved.( P.195, 344)
●PCS (Pre-Collision system)
●LKA (Lane-Keeping Assist)
●Dynamic radar cruise control with full-speed range
●Automatic High Beam
■If “Engine Stopped Steering Power Low” (LC500) or “H ybrid System Stopped Steer-
ing Power Low” (LC500h) is shown
The steering wheel may become extremely heavy. If the steering wheel becomes heavier
than usual when operating, hold firmly and operate using more force than usual.
■If “Warming Up Maximum Vehicle Speed: 65MPH” is shown (LC500h)
The transmission is being warmed up and the ve hicle is unable to be driven over 65 mph
(110 km/h). Wait until th e transmission warms up.
■If “Stop the vehicle in a safe place Shift to P position” is shown (LC500h)
There may be a malfunction in th e hybrid system or the shift position may be shifted to N for
a long time. Immediately stop the vehicle and contact your Lexus dealer.
■If “Oil Maintenance Required Soon” is shown (LC500h)
The engine oil is scheduled to be changed. Check the engine oil, and change if necessary.
After changing the engine oil, the message should be reset. (P.283)
■If “Maintenance Required Soon” is shown
Indicates that all maintenance according to th e driven distance on the maintenance sched-
ule
* should be performed soon. The message is shown approximately 4500 miles (7200
km) after the message has been reset. If necessary, perform maintenance.
*: Refer to the separate “Sched uled Maintenance” or “Owner’s Manual Supplement” for the
maintenance interval app licable to your vehicle.
■If “Engine Oil Level Low Add or Replace” is shown
The engine oil level is low. Chec k the level of engine oil, and add if necessary. This message
may appear if the vehicle is stopped on a slope. Move the vehicle to a level surface and
check to see if the message disappears.
■If a message that indicates the need for referring to Owner’s Manual is shown
●If any of the following messages is shown on the multi-information display, follow the
instructions.
• “Engine Coolant Temp High” ( P.364, 366)
•“Battery low” ( P.357)
• “Transmission Fluid Temp High” ( P.156, 162)
●If any of the following messages is shown on the multi-information di splay, it may indicate
a malfunction. Have the vehicle inspected by your Lexus dealer immediately.

3487-2. Steps to take in an emergency
• “Access System with Elec. Key Malfunction”
• “Shift system malfunction”
• “P switch malfunction”
• “Shift system unavailable”
●If any of the following messages is shown on the multi-information di splay, it may indicate
a malfunction in a system or part. Immediatel y have the vehicle inspected by your Lexus
dealer.
• “Hybrid System Malfunction” (LC500h)
•“Check Engine”
•“Hybrid Battery System Malfunction” (LC500h)
• “Accelerator System Malfunction”
• “Hybrid system stopped” (LC500h)
• “Engine stopped”(LC500h)
●If any of the following messages is shown on the multi-information di splay, it may indicate
a malfunction. Immediately stop the vehicle and contact your Lexus dealer.
• “Braking Power Low”
• “Charging System Malfunction”
• “Oil Pressure Low”
●If “Aux Battery Low” is shown, observe the following. (LC500h)
• If the message disappears in a few minutes*
Keep the hybrid system operating for more than approximately 15 minutes to charge the
12-volt battery.
• If the message does not disappear Refer to “If the 12-volt battery is discharged” ( P.357) to start the hybrid system
*: It is displayed for approximately 6 seconds.
●If “Battery low” is shown, the 12-volt battery charge is insufficient. Recharge or replace the
12-volt battery.
●If “Maintenance Required for Traction battery Cooling Parts” is shown, the filters may be
clogged, the air intake vents may be blocked, or there may be a gap in the duct. There-
fore, perform the following correction procedure. (LC500h)
• If the air intake vents and filters of the hybrid battery (traction battery) are dirty, perform the procedure on P.279 to clean them.
• If the warning message is shown when the air intake vents and filters of the hybrid battery
(traction battery) are not dirty, have th e vehicle inspected by your Lexus dealer.
■If a message that indicates the need fo r visiting your Lexus dealer is shown
The system or part shown on the multi-information display is malfunctioning. Have the vehi-
cle inspected by your Lexus dealer immediately.
■Warning buzzer
In some cases, the buzzer may not be heard du e to being in a noisy location or audio sound.
NOTICE
■While the engine oil level warning message is displayed
Continued engine operation with low engine oil will damage the engine.

3517-2. Steps to take in an emergency
7
When trouble arises
One of the following may be the cause
of the problem:
The electronic key may not be func-
tioning properly. ( P.356)
 There may not be sufficient fuel in
the vehicle’s tank.
Refuel the vehicle. ( P.182)
 The engine may be flooded.
Try to restart the engine again fol-
lowing correct starting procedures.
( P.146)
 There may be a malfunction in the
engine immobilizer system.
( P.69)
 There may be a malfunction in the
shift control system.
* ( P.149)
 There may be a malfunction in the
steering lock system.
*: It may not be possible to shift the shift
position other than P.
One of the following may be the cause
of the problem:
 The 12-volt battery may be dis-
charged. ( P.357)
 The 12-volt battery terminal con-
nections may be lo ose or corroded.
( P.301)
The engine starting system may be
malfunctioning due to an electrical
problem such as electronic key battery
depletion or a blown fuse. However, an
interim measure is available to start the
engine.
One of the following may be the cause
of the problem:
 One or both of the 12-volt battery
terminals may be disconnected.
( P.301)
 The 12-volt battery may be dis-
charged. ( P.357)
 There may be a malfunction in the
steering lock system.
If the engine will not start
(LC500)
If the engine will not start even
though correct starting procedures
are being followed ( P.146), con-
sider each of the following points:
The engine will not start even
though the starter motor oper-
ates normally.
The starter motor turns over
slowly, the interior lights and
headlights are dim, or the horn
does not sound or sounds at a low
volume.
The starter motor does not turn
over
The starter motor does not turn
over, the interior lights and head-
lights do not turn on, or the horn
does not sound.

3527-2. Steps to take in an emergency
Contact your Lexus dealer if the problem
cannot be repaired, or if repair procedures
are unknown.
When the engine does not start, the
following steps can be used as an
interim measure to start the engine if
the engine switch is functioning nor-
mally:
1Press the parking brake switch to
check that the parking brake is set.
(P.168)
Parking brake indicator will come on.
2 Turn the engine switch to ACCES-
SORY mode.
3 Press and hold the engine switch
for about 15 seconds while
depressing the brake pedal firmly.
Even if the engine can be started using
the above steps, the system may be
malfunctioning. Have the vehicle
inspected by your Lexus dealer. One of the following may be the cause
of the problem:

The electronic key may not be func-
tioning properly. ( P.356)
 There may not be sufficient fuel in
the vehicle’s tank.
Refuel the vehicle. ( P.182)
 There may be a malfunction in the
immobilizer system. ( P.69)
 There may be a malfunction in the
shift control system.
* ( P.153)
 There may be a malfunction in the
steering lock system.
 The hybrid system may be malfunc-
tioning due to an electrical problem
such as electronic key battery
depletion or a blown fuse. However,
depending on the type of malfunc-
tion, an interim measure is available
to start the hybrid system.
*: It may not be possible to shift the shift
position other than P.
Starting the engine in an emer-
gency
If the hybrid system will not
start (LC500h)
Reasons for the hybrid system not
starting vary depending on the situ-
ation. Check the following and per-
form the appropriate procedure:
The hybrid system will not start
even though the correct starting
procedure is being followed.
( P.149)

3557-2. Steps to take in an emergency
7
When trouble arises
the filler opening due to air being dis-
charged from inside the fuel tank.
Therefore, fill the fuel tank carefully and
slowly.
■When the electronic key does not work
properly
●Make sure that the smart access system
with push-button start has not been deac-
tivated using the Remote Touch or at your
Lexus dealer. If it is off, turn the function
on.
●Check if battery-saving mode is set. If it is
set, cancel the function. ( P.115)
Use the mechanical key ( P.104) in
order to perform th e following opera-
tions:
WARNING
■After opening the fuel filler door
Make sure to put back the cover to the
center of the rear seat. Failure to do so
may cause an accident.
NOTICE
■After opening the fuel filler door
●Secure the tab in its original position.
●Install the tab so that it does not cover
the clip installation position . Fail-
ure to do so may cause damage to the
clip and make it impossible to install
the cover.
A
If the electronic key does not
operate properly
If communication between the
electronic key and vehicle is inter-
rupted ( P.115) or the electronic
key cannot be used because the
battery is depleted, the smart
access system with push-button
start and wireless remote control
cannot be used. In such cases, the
doors and trunk can be opened and
the engine can be
started by following the procedure
below.
NOTICE
■In case of a smart access system with
push-button start malfunction or
other key-rela ted problems
Take your vehicle with all the electronic
keys (including the card key) provided
with your vehicle to your Lexus dealer as
soon as possible.
Locking and unlocking the
doors, opening the trunk and
using the key linked functions

3567-2. Steps to take in an emergency
■Locking and unlocking the door
1 Push in the depression on the front
edge of the driver’s door handle.
2 Insert the mechanical key while
pulling on the driver’s door handle.
3 Turn the key in order to perform the
following operations.
Locks both side doors
Closes the windows (turn and
hold)
*
Unlocks the door
Turning the key rearward unlocks the
driver’s door. Turning the key once again
within 5 seconds unlocks the other door.
Opens the windows (turn and
hold)
*
*: These settings must be customized at
your Lexus dealer.
■Opening the trunk
Unlock the doors, and press the trunk
opener switch.
1 Depress the brake pedal.
2 Touch the Lexus emblem side of the
electronic key to the engine switch
.
When the electronic key is detected, a
buzzer sounds and the engine switch
will turn to IGNITION ON
mode .
When the smart access system with push-
button start is deactivated in customization
setting, the engine switch
A
B
C
D
WARNING
■When using the mechanical key and
operating the power windows
Operate the power window after check-
ing to make sure that there is no possibil-
ity of any passenger having any of their
body parts caught in the window.
Also, do not allow children to operate the
mechanical key. It is possible for children
and other passengers to get caught in
the power window.
Starting the engine tem>